Marguerite Chapman

Perry Mason is hired by a woman who is being blackmailed by a long-missing witness in the six-year-old murder of her husband.

Trails boss Gil Favor and ramrod Rowdy Yates encounter a stage coach accident while driving their cattle north. They discover that a lone horseman is menacing the travelers, a professional killer named Jardin.

After a security guard is murdered during the theft of a valuable emerald collection Barnaby and J.R. are hired to investigate. What they unearth is a madam, her low-life boyfriend, and a call girl carrying out her part in a scheme to rip-off unsuspecting men of their valuables.

Marshal Jim Craig is escorting Gil Spanner to Cheyenne to testify against Chad Farrell, but Gil is anything but cooperative and Craig is now nursing broken ribs.